LMR51450FNDRRR

Voltage Regulators - DC DC Switching Regulators Overview

The LMR51450FNDRRR is a synchronous buck converter from Texas Instruments, housed in a 12-WSON package. It operates with an input voltage range of 4 V to 36 V and delivers up to 5 A of output current. The device supports adjustable output voltages between 0.8 V and 28 V. Key electrical parameters include a switching frequency range of 200 kHz to 1.1 MHz, a typical quiescent current of 25 uA, and a maximum operating junction temperature of 150°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated synchronous rectification for high efficiency
• Wide input voltage capability supporting various power rails
• Adjustable switching frequency for optimization
• Compact footprint suitable for space-constrained designs

Voltage Regulators - DC DC Switching Regulators Applications

• Industrial point-of-load regulation
• Consumer electronics power management
• Infotainment system power distribution
• Embedded computing board supplies

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'FNDRRR' against the manufacturer datasheet to confirm the exact reel quantity and tape-and-reel specifications. Ensure compatibility with moisture sensitivity level requirements during storage and handling. Cross-reference the ordering part number with official distributor catalogs to avoid confusion with similar variants in the LMR514xx family.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a compact solution is required for inputs up to 36 V. The wide operating temperature range supports harsh environments. Consider the thermal performance of the WSON-12 package relative to the expected load current. Verify that the external component values align with the desired switching frequency and output voltage settings defined in the application circuit guidelines.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the LMR514xx series of integrated power switches. It combines the controller, high-side switch, and low-side synchronous rectifier into a single module. This integration reduces the external component count compared to discrete solutions. The series targets applications requiring moderate current levels with high efficiency and small physical dimensions.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LMR51450SDRRR is documented as a parameter-equivalent alternative within the same product family.